Recently, the first phase of the 795MW/1600MWh centralized energy storage project, 500MW/1000MWh, was successfully connected to the grid in Shandong Province. The project is currently the largest electrochemical energy storage plant in terms of single project capacity in China.

Kehua provided the centralized energy storage system solutions for the project, including 80 sets of 5MW energy storage skid solution with energy storage converters and transformers. The product supports 110% overload, high/low voltage ride-through, VSG/PQ/VF/black start functions, millisecond grid power schedule response, strong grid adaptability, and guarantees safe and stable operation of the power station. The system adopts IP55 protection level and intelligent forced air-cooling design, which makes it easy to adapt to complex environments with multiple protections from the inside. The maximum efficiency of 99.03% can greatly increase the power generation capacity and improve the ROI (return on investment) in the long-term operation of the product.

In addition, the product adopts the integrated design of energy storage converter and transformer. With less equipment and smaller footprint, with pre-fabricated delivery, it can achieve high efficiency in transportation, installation, commissioning and O&M, which effectively reduces LCOS costs and brings more value benefits to customers.

Not only the project can effectively guarantee the grid-connected consumption of the surrounding new energy stations, it can also provide flexible regulation services such as peak shifting and frequency regulation for the power grid. With the first phase under operation, the one-time charging capacity will reach 10 million degrees, which can fulfill the electricity use of about 5,000 families for one month, meanwhile, the annual consumption of renewable energy power will be about 320 million kWh, which will empower the high-quality development of the local new energy industry, and help the local economy and society to develop in a sustainable way.

About Kehua

Based on 36 years of experience in power electronic technology, Kehua has diversified solutions and rich project experience in the fields of photovoltaic, energy storage, micro-grids and integrated energy services. By the end of 2023, Kehua’s PV installation has exceeded 46GW and its energy storage installation has exceeded 15.2GW/8.2GWh globally. Presently, Kehua has become the world's fourth largest PCS supplier (S&P Global), a Tier 1 energy storage supplier and Top 10 solar inverter manufacturers (BloombergNEF). Going forward, Kehua will continue to be a reliable PV and ESS expert, create clean energy, and dedicated to enabling a zero-carbon lifestyle for people worldwide.